Which process most directly triggers undersea landslides after large earthquakes?

💡 Explanation

Liquefaction increases underwater slope instability because seismic ground motion compacts loosely packed sediments, therefore increasing pore water pressure, causing the sediment to behave like a viscous fluid rather than a solid. This occurs during shaking, rather than uplift or redeposition phenomena.

• Which outcome occurs when freshwater inflow reduces surface density within an ocean gyre?
• Which mechanism causes orographic precipitation on a mountain range near a transform fault?
• Which process causes rapid uplift on the footwall side adjacent to normal fault during extension?
• Which outcome amplifies effusive volcanism around shield volcanoes?
• Which risk greatly increases when excessive groundwater extraction collapses subterranean karst systems?
• Which mechanism is responsible for surface rupture along a transform fault boundary?